20218023

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{5261}}^1$

素因数の和:5335

約数の個数: 24

約数和(自身を含む): 33929376

約数和(自身を除く): 13711353

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 5261, 15783, 36827, 47349, 110481, 320921, 331443, 962763, 2246447, 2888289, 6739341, 20218023]

約数ペア:

[(1, 20218023), (3, 6739341), (7, 2888289), (9, 2246447), (21, 962763), (61, 331443), (63, 320921), (183, 110481), (427, 47349), (549, 36827), (1281, 15783), (3843, 5261)]